Steel underframe for railway-cars.



G. B. RoBBINs & W. E. SHARP. STEEL UNDERFRAME FOR lRAILWAY GARS.

APPLICATION FILED MAY 29, 1908.

Patented July 6, 1909.

. EINS and WILLIAM E. SHARP,'both citizens connect the abutting ends ofthe draft-arms .and center sills on the opposite sides thereof `ousanchorage for the draft-gear run-ning UNTTED 4sTATEs PATENT oiEEroE.

GEORGE B. ROBBINS, OF HINSDALE` AND WILLIAM E. SHARP, OFCHIUAGO,ILLINOIS.

STEEL UNDERFRAME Fon RAILWAY-CARS.

Specification of Letters Patent.

' Patented Jniye, 1909.

Application filed May 29, `1908. Serial No. 435,808.

To all whom 'it may concern:

Be it known that we, GEORGE B. ROB- oi the lnited States, residing,respectively, at Hinsdale and Chicago,l in the county of Cook and Stateof Illinois, have invented. certain Anew and useful Improvements inSteel Underframes for Railway-Cars, of which the following is aspecification.

This invention relates to, improvements in steel underframes forrailway'cars, and has for its main object to provide an improvedconstruction in which the steel centeresills and draft-armson oppositesides of the bod T-bolster are securelyV joined through the atter, so asto form a continufrom end to end of the carto withstand bothv buliingand pulling strains.

In carrying vout our invention we employ a body-bolster, preferably madecontinuous from side to side of the underframe, and

through the agency of links passing through the body-bolster on oppositesides of the draft-ar1ns and center-sills, said links being stronglysecured at their ends to the draftarms and center-sills. In theparticular embodiment of the invention herein shown, these links aresecured to the draft-arms and. center-sills through the agency .of keyspassed transversely through the draft-arms and links on one side of thenbolster and through the center-sills and links on the opposite side ofthe bolster, in such a manner as to transmit through said. links bothdraft and bufling strains in either direction. We also preferably employin addition to the parts specified, hollow filler castings interposedbetween and riveted to the two draftarms and the two center-sills andabutting against the body-bolster, which castings, in the constructionherein shown, are transversely apertured for the passage of the said.keys.

The invention will be readily understood when considered in connectionwith the accompanying tlrawings,showing a practical mechanicalembodiment thereof, in which Figure 1 is 'a top plan View of thecomplete structure. Fig. 2 is a longitudinal verticalsection on the line2-2 of Fig. 1.

Fig. 3 isan end view of Fig. 1. 4

Referring to the drawings, 5 indicates a body-bolster herein shown ascontinuous from side to side of the car.

6 designates each of a pair of center-sills shown as of outwardly facingchannel form, the ends of which abut against the side of thebody-bolster either directly as shown,

'or through the intervention of one or more filler castings, as shown inour pending ap-A plication on underframes'forrailway cars, Serial No.409,458, filed January 6, 1908. 7 designates each of a air of steeldraftarms, also shown as o channel form, the inner ends of which eitheroutwardly facing v directly or indirectly abut against the outer side ofthe bolster 5.

8 designates each of a pair of links that are' passed through thebody-bolster 5 on opposite sides of the draft-arms and centersills,respectively, and, near their ends are apertured to receive the ends ofkeys 9 that are passed through suitable apertures in the draft-arms andcenter-sills, cotters l() or other suitable fastening devices beingemployed to retain the links 8 in engagement with the keys 9. l

` To increase the rigidity and strength of the structure we also, asherein shown, preferably employ hollow filler castings 11 and 12, theformer of which is interposed between the two draft-arms 7, andthelatter between the `two 4center-sills 6, said filler castings at theirinner or closedends. abutting against the sides of the bolster. Thesefiller castings are strongly riveted to the draft-arms and center-sills,respectively, as indicated at 13 and 14.

Overlying the body-bolsteil .and inner ends of the draft-arms and'center-sills are top and bottom gusset-plates 15 and 16, respectively,these gusset-plates being riveted'to the bolster as indicated at 17 andto the upper and lower sides of the filler castings, as indicated at 18.i

It will be seen that by reason of theforegoing construction both thedraft and buiiing strains imparted to the draft-arms 7 are transmitteddirectlyv to the longitudinal center-sills 6 through the 1inks-8 andkeys 9, thus producing a practically continuous anchorage for the draftand bufiing gear from strains on the rivets by which the top and bottomgusset-plates '15 and 16 are secured 'to the bolster and to thedraft-arms and center-sills.

It willbe evident to those skilled in the art that the broad principleof the invention is capable of embodiment in other speciiic forms ofconnecting devices between the draft-arms and center-sills, and in acompanion application filed concurrently herewith, Serial No. 485,809,we have disclosed and claimed another such means of connecsite sides ofsaid bod tion. Hence, we do not, in this application, limit ourselves tothe particular mechanical embodiment of the connecting means herein,l

disclosed, except to the extent clearly indicated in specific claims.

1. In an underframe construction, the combination with a bodybolstervand draft arms and center sills abutting against oppobolster, of linksextendin through said ody bolster on op o- 4site si es o f saiddraft-arms and centersi ls,

and means connecting the opposite ends 'of said-links to said draft armsand center sills,

Substantially as described.

2. In an underframe construction, the

` combination with aibody bolster and draft arms andcenter sillsabutting against oppo:

`site sides of said body bolster, of links extending through said bodybolster on opposite sides of said draft arms and center s1 ls and keyspassed through said draft arms and lplates overlying an center sills andthe opposite ends of said 3 links, substantially as described. y

3. `In an underframe construction, the combination with a body bolsterand draft arms and center sills abutting against opposite sides of saidbody bolster, of Iller castings between and riveted to said draft-'armsand center-sills, respectively, links extending through saidbody-bolster on o posite sides of said 'draft-arms and center-sills, and

keys passed through said draft-arms and cen- 4' through saidbody-bolster on opposite sides 5l of said draft-arms and center-sills,keys passed through said draft-arms and centersills and theirinterposed. filler castings, said keys also extending through andconnecting said links, and/up er and lower gusset- 6 riveted to saidbolster and filler castings, substantially as described. A

GEORGE B. ROBBINS. WILLIAM E. SHARP.

Witnesses: I

FRANCIS J. MoAssEY, I WILLIAM B'CARPENTER.

